You can use IBM Lotus Sametime for BlackBerry smartphones to chat with other IBM Lotus Sametime users using your BlackBerry smartphone. To use the client, you must have an IBM Lotus Sametime user name. If you do not have a user name, contact your administrator.
You can send and receive email messages and use other applications on your smartphone while the client is running. When you receive a new instant message, an indicator appears at the top of the Home screen.